Question

If we multiply a number with 3 and add 2 to the product, the number obtained is 4 times the original number. Find the number.

• A. 5
• B. 9
• C. 2
• D. 6

Answer 1

The correct option is C 2

Let the number be x.
According to the question,
Thrice of the number + 2 = Four times the number
3x + 2 = 4x

If x =1,
LHS = $3x+2=3\times 1+2=3+2=5$
RHS = $4\times 1=4$
LHS $\ne$ RHS

If x = 2,
LHS = $3x+2=3\times 2+2=6+2=8$
RHS = $4x=4\times 2=8$
LHS = RHS

Therefore, x = 2 holds good for the equation.
Hence, the required number will be 2.